Are you planning to build an addition to your home, or other improvements attached to your home? If you are making physical improvements to your home which can include the addition of, or repairs to, garages carports, patios or other improvements that are attached to and compatible with your home, you can receive a 3 year exemption on the value of the improvement. Use this form to let our office know about the improvement before you complete it. View theExemption for Physical Improvement to a Single-Family Dwelling (DOC).